[Code of Federal Regulations]
[Title 29, Volume 8]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 29CFR1926.706]

[Page 409-410]
 
                             TITLE 29--LABOR
 
CHAPTER XVII--OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT 
                                OF LABOR
 
PART 1926_SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION--Table of 
Contents
 
               Subpart Q_Concrete and Masonry Construction
 
Sec.  1926.706  Requirements for masonry construction.

    (a) A limited access zone shall be established whenever a masonry 
wall is being constructed. The limited access zone shall conform to the 
following.
    (1) The limited access zone shall be established prior to the start 
of construction of the wall.
    (2) The limited access zone shall be equal to the height of the wall 
to be constructed plus four feet, and shall run the entire length of the 
wall.
    (3) The limited access zone shall be established on the side of the 
wall which will be unscaffolded.
    (4) The limited access zone shall be restricted to entry by 
employees actively engaged in constructing the wall. No other employees 
shall be permitted to enter the zone.

[[Page 410]]

    (5) The limited access zone shall remain in place until the wall is 
adequately supported to prevent overturning and to prevent collapse 
unless the height of wall is over eight feet, in which case, the limited 
access zone shall remain in place until the requirements of paragraph 
(b) of this section have been met.
    (b) All masonry walls over eight feet in height shall be adequately 
braced to prevent overturning and to prevent collapse unless the wall is 
adequately supported so that it will not overturn or collapse. The 
bracing shall remain in place until permanent supporting elements of the 
structure are in place.

 Appendix A to Subpart Q of Part 1926--References to subpart Q of Part 
                                  1926

                    (This Appendix is non-mandatory.)

    The following non-mandatory references provide information which can 
be helpful in understanding and complying with the requirements 
contained in subpart Q.
     Accident Prevention Manual for Industrial 
Operations; Eighth Edition; National Safety Council.
     Building Code Requirements for Reinforced 
Concrete (ACI 318-83).
     Formwork for Concrete (ACI SP-4).
     Recommended Practice for Concrete Formwork (ACI 
347-78).
     Safety Requirements for Concrete and Masonry Work 
(ANSI A10.9-1983).
     Standard Test Method for Compressive Strength of 
Cylindrical Concrete Specimens (ASTM C39-86).
     Standard Test Method for Making and Curing 
Concrete Test Specimens in the Field (ASTM C31-85).
     Standard Test Method for Penetration Resistance 
of Hardened Concrete (ASTM C803-82).
     Standard Test Method for Compressive Strength of 
Concrete Cylinders Cast In-Place in Cylindrical Molds (ASTM C873-85).
     Standard Method for Developing Early Age 
Compressive Test Values and Projecting Later Age Strengths (ASTM C918-
80).
     Recommended Practice for Inspection and Testing 
Agencies for Concrete, Steel and Bituminous Materials as Used in 
Construction (ASTM E329-77).
     Method of Making and Curing Concrete Test 
Specimens in the Laboratory (ASTM C192-88).
     Methods of Obtaining and Testing Drilled Cores 
and Sawed Beams of Concrete (ASTM C42-87).
     Methods of Securing, Preparing and Testing 
Specimens from Hardened Lightweight Insulating Concrete for Compressive 
Strength (ASTM C513-86).
     Test Method for Comprehensive Strength of 
Lightweight Insulating Concrete (ASTM C495-86).
     Method of Making, Accelerating Curing, and 
Testing of Concrete Compression Test Specimens (ASTM C684-81).
     Test Method for Compressive Strength of Concrete 
Using Portions of Beams Broken in Flexure (ASTM C116-68 (1980)).